MG T-ABC

OK, here's an oddball question. Anyone know a lucas part number for the bulb used in a Butlers 866 trouble lamp? It would have something like an 1156s symmetric pins but with two pads. The base would not be connected at all. Current would pass between the two pads leaving the body of the lamp isolated.

Thanks.

Unless I misunderstand your description you are looking for a single filament double contact bulb where the respective contacts are power and earth, www.jbvintagespares.co.uk are listing them also another likely source will be Auto electrical services known as AES. Have you considered sifting through the remarkable auto bulbs from the now plentiful suppliers of LED bulbs , the likes of LEDs for classiccars , many others, Paul Goff provides bulbs for motor bike head lamps, the Butler lamp seems to have used a motor bike headlamp bulb. Best wishes Johnnie W

Checking my AES actual paper catalogue this morning I notice that they do list a double contact B15 bulb which is 36 Watt single filament

Thanks for the info. I've since learned that a 1076 works well. I learned something new in that I didn't know some bayonet lamps have the base electrically isolated. I always assumed the the base was a "ground" of some sort.
The 1076 must be getting obsolete as only one of the five auto stores near me even has it listed on their website.
The 1076 pulls about 1.7 amps so it's about 20 watts. As this is a decorative thing only the 1076 should work fine.